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He said: “For me it’s just the perfect mix of adventure, detective work and the supernatural. We learnt a lot after the first one and this time we’ve upped the ante, adding more physical 'missions' that players need to complete as they go.

“Casefile gets players using their body and brain in equal measures, and having a lot of fun along the way.

"Lincoln, with its great mix of heritage buildings and independent businesses, really is the perfect location for our games.”

Matt Corrigan, Lincoln BIG chief executive, said: “Finding fun and different ways to spend the day with friends and family can be a challenge.

The investigation should take around two to three hours

“April’s Casefile game made a real change from the usual kind of event and people really responded to that.

"Like last time, we’ve got a fabulous line-up of locations taking part.

"Players will all find at least one of our hidden local gems that they didn’t know about before.

“It’s really exciting that this time the game includes one of Lincolnshire’s great heroes, Lord Tennyson.

"I describe the game as a giant Agatha Christie play, only the whole of the city centre is the stage and you are Miss Marple.”